Well and my perspective with aikido is that anything that is a throw or push to gently subdue an attacker is equally a destructive atemi with any part of your body against the other person's (whatever point of contact you get, you should be able to issue incredible force through, if training internal strength is your bag). The taiji techniques in the youtube video linked above are pretty consistent with that as well, any throw or push is masking the strategy of "get close in, unleash overwhelming force hit, then disengage".